Curling iron



FIG. 1 is a perspective view of the curling iron of the present invention;

FIG. 2 is a top plan view of the curling iron of FIG. 1, according to the present invention; and,

FIG. 3 is a side elevation view of the curling iron of FIG. 1, according to the present invention. 

The ornamental design for a curling iron, as shown and described. 